Thies Marten Heick

Thies Marten Heick
Aarhus University | AU · Department of Agroecology

Professor (Assistant)

About

32
Publications
9,722
Reads
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339
Citations
Citations since 2016
30 Research Items
337 Citations
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2016201720182019202020212022020406080100
Introduction
Thies Marten Heick currently works at the Department of Agroecology, Aarhus University. Thies does research in Aerobiology, Microbiology and Mycology.
Additional affiliations
October 2017 - April 2018
French National Institute for Agriculture, Food, and Environment (INRAE)
Position
  • PostDoc Position
January 2017 - present
Aarhus University
Position
  • PostDoc Position
October 2013 - January 2017
Aarhus University
Position
  • PhD Student
Education
September 2010 - December 2012
University of Copenhagen
Field of study
  • Agronomy
October 2006 - December 2009
University of Hohenheim
Field of study
  • Agronomy

Publications

Publications (32)
Article
Full-text available
A quantitative PCR method (qPCR) was developed for the detection and quantification of Ramularia beticola causing Ramularia leaf spot in sugar beet. R. beticola specific primers were designed based on the internal transcribed spacer region 2 (ITS2). The assay was applied on DNA extracted from spores trapped on tape from Burkard spore traps placed i...
Article
Full-text available
Septoria tritici blotch (STB; Zymoseptoria tritici) is a severe leaf disease on wheat in Northern Europe. Fungicide resistance in the populations of Z. tritici is increasingly challenging future control options. Twenty-five field trials were carried out in nine countries across Europe from 2019 to 2021 to investigate the efficacy of specific DMI an...
Technical Report
Full-text available
The main questions of the project were (i) Can Septoria tritici blotch and Fusarium head blight i wheat be efficiently controlled by microbial biological control agents (BCAs) alone or combined with traditional chemical fungicides (ii) Can the development of fungicide resistance in the Zymoseptoria tritici pathogen population be reduced by the comb...
Article
Ramularia leaf spot (RLS) caused by the fungus Ramularia collo-cygni (Rcc) has become a threat to barley production in Argentina. All barley varieties are susceptible to RLS; thus, disease management relies on fungicides like quinone-outside inhibitors (QoIs), demethylation inhibitors (DMIs) and succinate dehydrogenase inhibitors (SDHIs). Europe re...
Article
Background: Fenpicoxamid is a recently developed fungicide belonging to the Quinone inside Inhibitor (QiI) group. This is the first fungicide within this group active against the Zymoseptoria tritici, which causes septoria tritici blotch on wheat. The occurrence of pre-existing resistance mechanisms was monitored, by sensitivity assays and Illumin...
Article
Cercospora leaf spot (CLS) is a globally important disease of sugar beet (Beta vulgaris L.) caused by the fungus Cercospora beticola. Long-distance movement of C. beticola has been indirectly evidenced in recent population genetic studies, suggesting potential dispersal via seed. Commercial sugar beet “seed” consists of the reproductive fruit (true...
Article
Full-text available
Plant pathogens cause significant damage to plant products, compromising both quantities and quality. Even though many elements of agricultural practices are an integral part of reducing disease attacks, modern agriculture is still highly reliant on fungicides to guarantee high yields and product quality. The azoles, 14-alpha demethylase inhibitors...
Article
BACKGROUND Over the past decade, demethylation inhibitors (DMIs) and succinate dehydrogenase inhibitors (SDHIs) fungicides have been extensively used to control to septoria tritici blotch, caused by Zymoseptoria tritici on wheat. This has led to the development and selection of alterations in the target-site enzymes (CYP51 and SDH, respectively)....
Article
Full-text available
Fungicide resistance has become a challenging problem in management of Septoria tritici blotch (STB), caused by Zymoseptoria tritici , the most destructive disease of winter wheat throughout western and northern Europe. To ensure the continued effectiveness of those fungicides currently used, it is essential to monitor the development and spread of...
Article
Full-text available
Zymoseptoria tritici (Zt) populations adapt under the selection pressure of fungicides applied for disease control. The primary objective of this study was to assess fungicide sensitivity in the Estonian Zt population. A total of 282 Zt isolates from 2019 and 2020 were tested for sensitivity to azoles (DMIs; prothioconazole-desthio, epoxiconazole,...
Article
The potential of cultivar mixtures to reduce disease severity and increase yields in cereals across the globe is well established. The effect of cultivar mixtures on the selection for pathogen strains resistant to specific fungicides has, however, not previously been investigated. In this study, the case of the pathogen Zymoseptoria tritici causing...
Article
Full-text available
Septoria tritici blotch (STB; Zymoseptoria tritici) is the most important leaf disease of wheat in Northern and Western Europe. The problem of fungicide resistance in Z. tritici populations is challenging future control options. In order to investigate differences in azole performances against STB, 55 field trials were carried out during four seaso...
Article
Demethylation inhibitor (DMI) and succinate dehydrogenase inhibitor (SDHI) fungicides are currently relied upon for the control septoria tritici blotch (STB) in European wheat fields. However, multiple mutations have occurred over time in the genes encoding the targeted proteins which have led to a practical loss of fungicide efficacies. Among the...
Article
Zymoseptoria tritici causes septoria tritici blotch (STB), the predominant fungal disease in wheat in Denmark and Sweden. Disease control is highly reliant on fungicides in the group of demethylation inhibitors (DMI). The use of DMIs has increased steadily since their introduction in the 1970s. Epoxiconazole and prothioconazole were the most widely...
Book
Full-text available
This publication contains results from crop protection trials, which were carried out at the Department of Agroecology within the area of agricultural crops. Most of the results come from field trials, but results from greenhouse and semi-field trials are included. The report contains results that throw light upon: • Effects of new pesticides • Res...
Article
Sugar beet (Beta vulgaris) is an important cash crop grown in temperate regions for the production of sugar. Fungal leaf diseases often infect the sugar beet crop during the season, causing significant yield reductions. This study aimed at investigating the effect of pre-symptomatic and well-timed fungicide treatments on disease control, yield, and...
Article
Powdery mildew (Blumeria graminis f.sp. tritici, f.sp. hordei, f.sp. avenae) is an important disease in cereal crops causing significant yield reductions, if not effectively controlled. The biofungicide Bacillus amyloliquefaciens (former subtilis) strain QST 713 suspension concentrate (Serenade®ASO) was investigated for its potential as a control a...
Article
Powdery mildew caused by Erysiphe betae is one of the major fungal diseases in sugar beet in Denmark and Sweden. Frequent applications of fungicides mitigate the risk of powdery mildew epidemics and, consequently, reduce yield losses conferred by the disease. So far, mixtures of quinone outside inhibitors (QoIs) and triazoles have provided good eff...
Technical Report
Full-text available
This publication contains results from crop protection trials, which has been carried out or organized by the Dept. of Agroecology. The report include data from trials which throw light upon: Efficacy of new pesticides, results with different control strategies including both cultivars and other IPM elements, results with fungicide resistance and...
Article
Control of septoria tritici blotch in Irish winter wheat crops has been reliant on the application of azoles fungicides for over a decade. The resulting intensive applications of azole fungicides have placed the Irish Zymoseptoria tritici populations under immense pressures to adapt. Evidence of this adaptation is observed in the decreasing sensiti...
Article
Septoria tritici blotch caused by the fungus Zymoseptoria tritici (formerly Mycosphaerella graminicola) is one of the most yield-reducing diseases worldwide. Effective disease management involves the use of resistant cultivars and application of fungicides. In this study, the population structure and genetic diversity of 183 Z. tritici isolates fro...
Book
Full-text available
The publication contains results from crop protection trials, which were carried out at the Dept. of Agroecology within the area of agricultural crops. Most results come from field trials, but also results from lab-testing and green house trials are included. The report contains results from testing of the efficacy of new pesticides, comparison of...
Poster
In this study 183 Z. tritici isolates sampled from Denmark, Sweden, Finland and the Baltic countries were analysed with three AFLP primer pair combinations. Genetic diversity and population structure of the population were examined according to sampled country in the northern zone, sampled location in Denmark, sampled year in Denmark and sampled va...
Article
Septoria tritici blotch (STB) caused by the fungal pathogen Zymoseptoria tritici is a global threat to sustainable wheat production. Applications of fungicide against STB are regarded as an essential means to minimise yield losses, however, fungicide resistance is developing and affecting fungicide efficacy greatly. Only a few fungicide classes are...
Article
Fungicides should be used to the extent required to minimize economic costs of disease in a given field in a given season. The maximum number of treatments and maximum dose per treatment are set by fungicide manufacturers and regulators at a level that provides effective control under high disease pressure. Lower doses are economically optimal unde...
Technical Report
Full-text available
This publication contains results from crop protection trials which were carried out at the Department of Agroecology within the area of agricultural crops. Most of the results come from field trials, but results from greenhouse and semi-field trials are also included. The report contains results that throw light upon: • Effects of new pesticides •...
Article
Septoria tritici blotch (STB) caused by the ascomycete Zymoseptoria tritici (Z. tritici) is currently the most prevalent foliar disease in wheat in the Nordic-Baltic region. Fungicide availability in this region differs greatly and is generally more limited than in other European regions. Monitoring of fungicide sensitivity is an essential tool to...
Poster
Genome-wide association mapping reveals new QTL associated with resistance against Septoria tritici blotch in winter wheat
Book
Full-text available
This publication contains results from crop protection trials carried out in 2015, which have been carried out at the Department of Agroecology in the area of agricultural crops. Most of the results come from field trials, but results from greenhouse and semi-field trials are also included. The report contains results that throw light upon: • Effec...
Article
Full-text available
Zymoseptoria tritici is a dominant pathogen in wheat causing Septoria leaf blotch (SLB), and sterol 14 α-demethylation inhibitors fungicides (DMI) are commonly used for control in Northern Europe. In 14 winter wheat trials carried out in Denmark, Lithuania, and Sweden in the years 2011 to 2013, fungicides containing DMIs were investigated for their...

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Projects

Projects (4)
Project
Sugar beet diseases and funigicide resistance